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What is LangFast?

LangFast is a lightweight yet powerful prompt testing platform tailored for product teams, prompt engineers, and developers working extensively with large language models (LLMs). Offering instant, no-signup access to a fully customizable prompt playground, it simplifies the creation and testing of prompt templates using Jinja2 syntax. Users can see real-time raw outputs directly from the LLM without any API abstractions, enabling precise control and immediate feedback. By eliminating manual testing friction, LangFast allows teams to validate prompts, iterate rapidly, and collaborate more effectively on prompt development projects. Created by a team with a proven track record of scaling AI SaaS platforms to over 15 million users, the platform emphasizes control and scalability. LangFast supports seamless sharing of prompt templates, making teamwork intuitive and efficient. Its simple pay-as-you-go pricing model ensures cost predictability and accessibility for teams of all sizes. The platform’s clean and lightweight design means it can be integrated easily into existing workflows without overhead. LangFast empowers teams to accelerate innovation in prompt engineering while managing expenses effectively. This makes it an ideal choice for organizations looking to enhance their AI-driven product development with flexible and transparent prompt testing.

What is DoCoreAI?

DoCoreAI is a dedicated platform that enhances the optimization of AI prompts and telemetry, specifically designed for product teams, SaaS companies, and developers working with large language models (LLMs) like those offered by OpenAI and Groq (Infra). With a local-first Python client and a secure telemetry engine, DoCoreAI enables teams to collect valuable metrics on their LLM interactions while protecting the integrity of original prompts to maintain data privacy. Key Features Include: - Prompt Enhancement → Improve the efficacy and reliability of LLM prompts. - Monitoring LLM Usage → Track token consumption, response times, and performance patterns. - Expense Analysis → Review and refine costs associated with LLM usage across different teams. - Developer Productivity Metrics → Identify time efficiencies and recognize potential usage hurdles. - AI Telemetry Solutions → Compile detailed insights while ensuring user privacy remains a priority. By leveraging DoCoreAI, organizations can decrease token costs, enhance AI model efficiency, and offer developers a unified platform to scrutinize prompt performance in real-time, thereby cultivating a more streamlined workflow. This comprehensive framework not only enhances productivity but also encourages data-driven decision-making, ultimately leading to improved outcomes in AI deployment. Furthermore, the ability to monitor and analyze usage patterns helps teams stay ahead in the rapidly evolving landscape of AI technology.

Media

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Media

Integrations Supported

Additional information not provided

Integrations Supported

Additional information not provided

API Availability

Has API

API Availability

Has API

Pricing Information

$60 one time
Free Trial Offered?
Free Version

Pricing Information

$9/month
Free Trial Offered?
Free Version

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

Langfa.st

Date Founded

2025

Company Location

United States

Company Website

langfa.st/new

Company Facts

Organization Name

MobiLights

Date Founded

2020

Company Location

India

Company Website

docoreai.com

Categories and Features

Categories and Features

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